We compared two 3 litre roll-top dry bags: the Sea to Summit Lightweight Dry Bag XS and the Osprey Ultralight Dry Sack.
What we looked at
Fabric and waterproofing, closure, extra features, stated size and weight, and price. The Osprey listing gives no dimensions or weight.
The verdict
If you want a stated 45g bag with a white interior, a D-ring and a base lash point, in bluesign-approved recycled 70D nylon, the Sea to Summit is the feature-rich pick, at £14.74, though only 2 were left when we checked. If you would rather pay £12.49 for a roll-top, waterproof-coated Osprey in GRS-certified 100% recycled fabric, it is the cheaper option, but the listing gives no size or weight.
A stated 45g bag with a white interior, D-ring and lash point, at £2.25 more.
A roll-top, waterproof-coated dry sack in certified recycled fabric for £2.25 less, but no size or weight listed.
Sea to Summit Lightweight Dry Bag XS 3L, Roll-Top, Recycled Fabric (Spicy Orange) — Most Features
Intended for: Marketed as a 3 litre waterproof roll-top dry bag in bluesign-approved recycled 70D nylon with a white interior, a base lash point and a D-ring, 17 x 13.3 x 21.3cm and 45g, for backpacking and paddle sports.
What we liked
- Stated size of 17 x 13.3 x 21.3cm and a weight of 45g
- Bluesign-approved, recycled 70D nylon, stated to be lightweight and strong
- White interior for finding gear in low light
- Base lash point and a D-ring attachment point at the buckle
- Roll-top closure, marketed for backpacking, trekking, cycling and kayaking
Worth knowing
- Costs £2.25 more than the Osprey Ultralight Dry Sack on these listings
- Only 2 were left in stock when checked
Best for
- Backpackers who want a stated 45g bag
- Anyone who wants a D-ring and lash point
- Kayaking and paddle sports
Not ideal for
- Budget-conscious buyers
- Anyone who wants a stated GRS-certified fabric
Osprey Ultralight Dry Sack, 3L, Black — Best Value
Intended for: Marketed as a 3 litre roll-top waterproof dry sack with waterproof-coated fabric and seams, made with bluesign-approved, GRS-certified 100% recycled main body fabrics and PFAS-free DWR treatments.
What we liked
- Cheaper than the Sea to Summit on these listings
- Roll-top waterproof closure with waterproof-coated fabric and seams
- Bluesign-approved and GRS-certified 100% recycled main body fabrics
- All DWR treatments made without PFAS
- Part of a coordinated packing system with other Osprey accessories
Worth knowing
- The listing gives no weight or dimensions
- The listing does not mention a D-ring or lash point
Best for
- Buyers who want the lower price
- Anyone who values certified recycled fabrics and PFAS-free treatments
- Organising gear inside a pack
Not ideal for
- Anyone who wants a stated weight and size
- Buyers who want a D-ring attachment point
